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Re: maximum files

To: linux-xfs@xxxxxxxxxxx
Subject: Re: maximum files
From: ASANO Masahiro <masano@xxxxxxxxxxxxxx>
Date: Thu, 25 Apr 2002 19:09:34 +0900 (JST)
In-reply-to: <1019658798.27989.29.camel@jen.americas.sgi.com>
References: <20020424160854G.masano@tnes.nec.co.jp> <1019658798.27989.29.camel@jen.americas.sgi.com>
Sender: owner-linux-xfs@xxxxxxxxxxx
Thank you for your reply.

From: Steve Lord <lord@xxxxxxx>

> In order to deal with the 32 bit limit on Linux, and with issues with
> 3rd party applications such as Legato Networker on Irix, changes
> went in recently which adjust the inode placement policy of XFS to
> restrict inodes to the part of the filesystem which keeps them within
> 32 bits, unless the inode64 mount option is used. The fix is more 
> complex than that as we need to make data prefer space not suitable
> for inodes to avoid filesystems which have lots of space but cannot
> create new files.

But it seems that XFSMNT_32BITINODES flag is always set.

> The theoretical maximum for XFS without the limits imposed by the
> Linux block and vfs layers is probably on the order of 2^6x which
> is a very very big number and would probably require the output of
> several major drive vendors for a long time to construct, around 115
> million 160G drives by my calculation!

Great!
How about 64bit linux? (e.g. XFS for IA-64 linux)

--
Masano


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